No. Marijuana is one of the few drugs that isnt. Type in vasoconstrictor into wikipedia to look up the ones that are. Marijuana actually does the opposite and increase blood â¦ flow and expand the arteries.
Some of the comorbid or associated medical symptoms for Mouth numbness may include these symptoms: 1  Digestive symptoms. 2  Face symptoms. 3  Head symptoms.  Mouth 1  symptoms. Nerve symptoms. 2  Pain. Sensations.  more associated symptoms...Â».
Most local anesthesia used in dentistry wears off within a few hours. Therefore if you still feel numb after that you should contact your dentist. In your case, it is likely the anesthesia to the nerves inside the tooth has worn off, however, the anesthesia to the tongue has not completely worn off yet.